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Recent publications demonstrate that SARS-CoV-2 may undergo prolonged shedding in stool, and that gut microbiome perturbations associate with COVID-19 severity.1 2 Faecal microbiota transplant (FMT) restores a damaged gut microbiome and may impact on immune responses,3 including in the respiratory system (‘gut–lung axis’)4; such microbiome-immune signalling may result in lung-epithelial resistance to SARS-CoV-2.5 We describe two interesting cases of patients treated with FMT primarily to treat Clostridioides difficile infection (CDI), but which coincidentally were performed just before initial symptoms of coexisting COVID-19 (figure 1).
Patient 1: an 80-year-old man with multiple comorbidities, including prior CDI, was admitted to hospital with pneumonia/sepsis. Following meropenem treatment, pneumonic features resolved, but CDI relapse occurred. Sequential vancomycin treatment and nasojejunal FMT were administered. On the day of FMT, he …
Footnotes
Contributors JB made an investigation plan and prepared the draft of the manuscript. JB, KW, MJ, AS, NB, BHM, EM-P and GWB consulted on the research work and provided data. JB, MJ and BHM made the final version of the manuscript.
Funding BHM is the recipient of an NIHR Academic Clinical Lectureship (CL-2019-21-002). The Division of Digestive Diseases at Imperial College London receive financial and infrastructure support from the NIHR Imperial Biomedical Research Centre (BRC) based at Imperial College Healthcare NHS Trust and Imperial College London.
Competing interests JB and GWB are owners of Human Biome Institute, Poland. BHM has received consultancy fees from Finch Therapeutics Group, Massachusetts, USA.
Provenance and peer review Not commissioned; externally peer reviewed.